US5271162A - Process for the emission-free drying of a substance in a drying drum - Google Patents
Process for the emission-free drying of a substance in a drying drum Download PDFInfo
- Publication number
- US5271162A US5271162A US07/697,328 US69732891A US5271162A US 5271162 A US5271162 A US 5271162A US 69732891 A US69732891 A US 69732891A US 5271162 A US5271162 A US 5271162A
- Authority
- US
- United States
- Prior art keywords
- drying
- air
- combustion chamber
- low emission
- substance according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/02—Heating arrangements using combustion heating
- F26B23/022—Heating arrangements using combustion heating incinerating volatiles in the dryer exhaust gases, the produced hot gases being wholly, partly or not recycled into the drying enclosure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Definitions
- the invention relates to a process for the emission-free drying of a substance in a drying drum.
- Such substances include, for example, sewage sludge, fish meal, sludges from starch factories, soap factories and paper mills, and also biomass such as wood chips, grass and sugar beet chips.
- Such substances can cause considerable pollution of the environment by odors and dust, and this is particularly unpleasant where the plant, for example a sewage sludge plant, is operated in the close proximity of residential dwellings.
- the odour pollution occurs in particular when evil-smelling substances are dried.
- this object is achieved in such a way that a closed vapour/air circulation is used, in which the pressure in the region of the product charge and of the seals at rotating parts is below the pressure of the surrounding air, so that no emission of odour or dust can be discharged to the surroundings during the drying process, and the water evaporated during drying, filter-flushing air and leakage air are continuously purged from the closed drying circulation, that the water vapour content is condensed out as far as possible in a downstream condenser and the uncondensable gases are fed as combustion air to the combustion chamber for generating the heat for the drying cycle, and that the temperature in the combustion chamber is above 750° C. in order to ensure complete combustion of all odorous substances.
- the flue gases pass through the combustion chamber and then through a gas/gas heat exchanger in which they release the major part of their heat content to the vapour/air mixture of the drying circulation.
- the purged air and flue gases from the combustion chamber can be discharged to the atmosphere virtually free of odour and dust ( ⁇ 2 mg/m 3 (S.T.P.)) and without a visible vapour plume.
- a substantial part of the heat expended for drying is, owing to the dew point (80°-90° C.) which is unusually high for a drum drier due to the closed drying air circulation, used for the heating of buildings, for product preheating or for other heat carriers, and multi-stage heat utilisation is thus accomplished.
- the product vapour can also be fed to a heat consumer for the preconcentration of products or for air-heating in a gas heat exchanger.
- the drying energy used is preferably fossil energy.
- FIG. 1 shows a flow diagram of a plant for processing sewage sludge into granules, pursuant to the present invention
- FIG. 2 shows a portion of the flow diagram of FIG. 1, with the addition of illustrating use of heat extracted by the condenser;
- FIG. 3 shows a further embodiment in which the vapor/air mixture is used for reheating and preheating.
- dehydrated sludge 2 is fed to a twin-shaft mixer 3, which is also supplied by a second conveyor screw 7 with dried material 5 from a silo 6 supplied via a drag-chain conveyor 7.
- the dried material 4 consists preferably of a dried end product of the same sludge type as the product which is to be processed.
- the granules are here classified on a vibratory screen 17 into three fractions, the smallest and the largest granule sizes being admixed to the sludge.
- the middle fraction is packaged in bags and can be used as a fertiliser.
- the quantity which cannot be sold as fertiliser can also be incinerated and has a calorific value which approximately corresponds to that of lignite.
- the free-flowing mixture 8 is passed by conveyor screws 9 and 10 to a drying drum 11, to which the dry granules are fed at the outlet by fluidisation, whereas the wet particles advance more slowly and repeatedly drop to the bottom, until they are sufficiently dry and flow to the outlet.
- the dried sewage sludge arising as granules is separated downstream of the drum 11 from the air/vapour mixture by means of a cyclone separator 12 with an integrated hose filter 13 and the granules pass via a discharge lock 14, an inclined screw 15 and elevator 16 to the vibratory screen 17, which effects the sorting into the three granule sizes. Cooling of the end product is carried out in counter-current with ambient air and prevents the formation of condensate in the storage silos or after packing.
- the granules have a grain size of about 2 to 4 mm, are dust-free and hygienically acceptable and, after cooling silos 18 and 19, can be passed selectively to various storage, loading or bagging installations.
- the conveying of the granule recycle comprises the drag-chain conveyor 7, a crusher mill 20, the dried material recycle silo 6 and the metering screw 4.
- the gases from the processing and conveying means and the granule cooler are heated to more than 750° C. by means of fossil fuels.
- the heat content of these gases is released in a heat exchanger 25 to the vapour/air mixture of the closed drier circulation.
- the vapour/air mixture is heated in the heat exchanger to about 500° C., dries the product in the drum drier, is thus cooled and takes up the evaporated water.
- the product Downstream of the drum drier, the product is separated from the vapour/air mixture in a cyclone 11 with an integrated dust filter 13.
- the vapour/air mixture is returned to the heat exchanger 25 for heating, a part of the vapour/air mixture being continuously extracted and fed to the condenser 26, or as combustion air to the combustion chamber 24.
- the air fraction from the drying circulation can also be fed via a demister 27 and an exit air heat exchanger 28 as combustion air to the combustion chamber 24.
- the heat extracted by means of the condensation creates, owing to the high temperature level of 85° to 90° C., ideal conditions for heat utilisation, such as the digestion tower treatment, sludge preheating and the like.
- the air drawn in by the conveyor devices and the cooling air from the dried material silos are purified in the hose filter 21 and, together with the air purged from the drying circulation, fed as combustion air to the combustion chamber 24.
- the fine particles 23 present in the hose filter 21 are likewise fed via a discharge screw 22 to the drag-chain conveyor 7 for recycle to the silo 6.
- the plant is provided with extraction means, and plant sections as well as conveying elements are operated under reduced pressure, so that an escape of odour-laden air and vapour condensation in the conveying elements are prevented.
- the air extracted from the transport devices and the cooling air from the dried material silos are purified in a hose filter and, together with the air purged from the drying circulation, fed as combustion air to the combustion chamber 24.
- the thermal data are listed in the above table.
- the plant can be monitored froma central control room. Apart from periodic lubrication work, no special maintenance work is necessary.
- drum drier plant described has, inter alia, the following advantages:
- leakage air and odour-laden air drawn in by the conveyor elements are used as combustion air for hot-gas generation, and
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Processing Of Solid Wastes (AREA)
- Treating Waste Gases (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1707/90-0 | 1990-05-18 | ||
CH1707/90A CH676500A5 (fr) | 1990-05-18 | 1990-05-18 | |
SG23594A SG23594G (en) | 1990-05-18 | 1994-02-08 | Process for the emission-free drying of a substance in a drying drum. |
Publications (1)
Publication Number | Publication Date |
---|---|
US5271162A true US5271162A (en) | 1993-12-21 |
Family
ID=25688446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/697,328 Expired - Lifetime US5271162A (en) | 1990-05-18 | 1991-05-08 | Process for the emission-free drying of a substance in a drying drum |
Country Status (12)
Country | Link |
---|---|
US (1) | US5271162A (fr) |
EP (1) | EP0457203B1 (fr) |
JP (1) | JP2584146B2 (fr) |
AT (1) | ATE95299T1 (fr) |
AU (1) | AU649250B2 (fr) |
CA (1) | CA2042843C (fr) |
CH (1) | CH676500A5 (fr) |
DE (1) | DE59100420D1 (fr) |
DK (1) | DK0457203T3 (fr) |
ES (1) | ES2045982T3 (fr) |
HK (1) | HK18394A (fr) |
SG (1) | SG23594G (fr) |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5535528A (en) * | 1994-02-01 | 1996-07-16 | By-Product Solutions, Inc. | Agglomerating waste sludge and yard waste |
DE19508140A1 (de) * | 1995-03-08 | 1996-09-12 | Tapken Hermannus | Trocknungsverfahren und Trocknungsvorrichtung zum Trocknen eines Produktes, insbesondere eines landwirtschaftlichen Produktes |
US5603751A (en) * | 1995-06-02 | 1997-02-18 | Mac Equipment, Inc. | Method and apparatus for removing particulate material from a wood drying system |
US5653042A (en) * | 1995-07-21 | 1997-08-05 | Besnard; Rene | Apparatus for drying crop materials |
US5697167A (en) * | 1994-11-24 | 1997-12-16 | W. Kunz Drytec Ag | Method for drying a substance, in particular wood shavings |
US5950322A (en) * | 1996-12-23 | 1999-09-14 | Firma Starcosa-Tag, Division Of Braunschweigische Maschinenbauanstalt Ag | Drier with exhaust gas purification |
US5966837A (en) * | 1996-05-06 | 1999-10-19 | Abb Flakt Ab | Wood drying plant and a method of purifying a drying gas from a wood drying device |
US6393727B1 (en) * | 1999-10-01 | 2002-05-28 | Louisiana-Pacific Corporation | Method for reducing VOC emissions during the manufacture of wood products |
US20020064085A1 (en) * | 2000-11-28 | 2002-05-30 | Kenzo Takahashi | Garbage processing machine |
US6484416B1 (en) * | 1999-06-25 | 2002-11-26 | Khd Humboldt Wedag Ag | Apparatus for producing cement clinker |
US20040060198A1 (en) * | 2000-11-14 | 2004-04-01 | Dieter Greubel | Method for conditioning fibrous substances |
WO2004029530A1 (fr) | 2002-06-21 | 2004-04-08 | George Svonja | Procede et appareil de sechage |
US20050022704A1 (en) * | 2003-07-31 | 2005-02-03 | Egbufoama Caius E. | Incinerator furnace condensers and methods of using |
EP1843114A1 (fr) * | 2006-04-06 | 2007-10-10 | Swedish Exergy Consulting AB | Installation de séchage |
US20070259532A1 (en) * | 2003-09-19 | 2007-11-08 | Hitachi Kokusai Electric Inc. | Producing Method of Semiconductor Device and Substrate Processing Apparatus |
US20090293303A1 (en) * | 2008-06-03 | 2009-12-03 | Synagro Technologies, Inc. | Biosolid Drying and Utilization in Cement Processes |
US20100146814A1 (en) * | 2008-12-11 | 2010-06-17 | Baker Stephen T | Vibratory Flash Dryer |
US20100223806A1 (en) * | 2009-02-18 | 2010-09-09 | Christian Labarde | Burner, installation and method for drying divided products using such a burner |
US20110030235A1 (en) * | 2008-01-10 | 2011-02-10 | Zdenek Brancuzsky | Method for continuously drying bulk goods, in particular wood fibers and/or wood chips |
US8632830B2 (en) | 2003-09-15 | 2014-01-21 | Trouw International B.V. | Fish fodder for freshwater fish and use of such fodder |
US8667706B2 (en) * | 2008-08-25 | 2014-03-11 | David N. Smith | Rotary biomass dryer |
RU2634463C2 (ru) * | 2016-04-11 | 2017-10-30 | Федеральное государственное бюджетное научное учреждение Всероссийский научно-исследовательский институт механизации животноводства, ФГБНУ ВНИИМЖ | Способ производства высоковитаминной травяной муки |
CN110382959A (zh) * | 2017-03-03 | 2019-10-25 | 道格拉斯科技有限公司 | 用于连续干燥散装物品、特别是木屑和/或木纤维的包括固体燃烧热气发生器的设备和方法 |
US11079106B2 (en) | 2017-03-03 | 2021-08-03 | Douglas Technical Limited | Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising multi-fuel burner with a muffle cooling system |
US11248845B2 (en) | 2017-03-03 | 2022-02-15 | Douglas Technical Limited | Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising a heat exchanger |
US11384981B2 (en) | 2017-06-06 | 2022-07-12 | Kronoplus Limited | Apparatus and method for continuously drying bulk goods |
US11543124B2 (en) | 2017-03-03 | 2023-01-03 | Kronoplus Limited | Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising a hot gas cyclone |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4017806A1 (de) * | 1990-06-01 | 1991-12-05 | Koerting Ag | Verfahren und anlage zur kontinuierlichen trocknung von holzspaenen, holzfasern oder anderen schuettguetern |
NL9100606A (nl) * | 1991-04-08 | 1992-11-02 | Vandenbroek Int Bv | Drooginrichting. |
BE1008915A3 (fr) * | 1994-10-13 | 1996-10-01 | Schoppe Technologie Gmbh | Procede et dispositif de sechage de boues de clarification mecaniquement presechees. |
DE19605146A1 (de) * | 1996-02-13 | 1997-08-14 | Roediger Anlagenbau | Verfahren zum Trocknen einer Substanz |
DE10157596C1 (de) * | 2001-11-23 | 2003-03-20 | Fraunhofer Ges Forschung | Verfahren zum Aufbereiten faseriger Substanzen |
DE10221367B4 (de) | 2002-05-13 | 2006-05-11 | Bankwitz, Robert, Dr. | Pneumatischer Schleudertrockner |
NL1021819C2 (nl) | 2002-11-01 | 2004-05-06 | Crop Heating B V | Werkwijze voor het drogen van gemaaid groenvoeder, alsmede een inrichting voor het thermisch behandelen van gemaaid groenvoeder. |
AT503896B1 (de) * | 2006-06-21 | 2008-10-15 | Andritz Tech & Asset Man Gmbh | Verfahren und anlage zur verarbeitung von feuchtgut |
JP2008142616A (ja) * | 2006-12-08 | 2008-06-26 | Ngk Insulators Ltd | 下水汚泥の乾燥方法 |
US9340741B2 (en) * | 2009-09-09 | 2016-05-17 | Gas Technology Institute | Biomass torrefaction mill |
RU2467269C1 (ru) * | 2011-05-20 | 2012-11-20 | Федеральное государственное образовательное учреждение высшего профессионального образования "Красноярский государственный аграрный университет" | Автономное устройство для сушки высоковлажного растительного сырья |
JP6192448B2 (ja) * | 2013-09-05 | 2017-09-06 | 新日鉄住金エンジニアリング株式会社 | 汚泥乾燥装置 |
JP6249882B2 (ja) * | 2014-05-23 | 2017-12-20 | 新日鉄住金エンジニアリング株式会社 | 汚泥乾燥装置および汚泥乾燥方法 |
DE102014112525A1 (de) * | 2014-09-01 | 2016-03-03 | Pn Power Plants Ag | Verfahren und Einrichtung zur Trocknung von biogenem Festbrennstoff |
WO2019056183A1 (fr) * | 2017-09-19 | 2019-03-28 | 深圳市能源环保有限公司 | Système de séchage thermique de boues de régénération |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3437321A (en) * | 1966-05-27 | 1969-04-08 | B & K Machinery Int Ltd | Regenerative paint drying system for continuous strip |
US4218832A (en) * | 1979-04-27 | 1980-08-26 | Champion International Corporation | Apparatus for processing wood products using heat from a boiler for indirectly heating drying gas |
US4628619A (en) * | 1984-03-21 | 1986-12-16 | Voest-Alpine Aktiengesellschaft | Drying plant for brown coals of high water content |
US4715965A (en) * | 1986-05-19 | 1987-12-29 | Sigerson Adam L | Method for separating and recovering volatilizable contaminants from soil |
US4759777A (en) * | 1987-11-10 | 1988-07-26 | Bact Engineering, Inc. | Decontamination of wood chip dryer gas |
US4780965A (en) * | 1986-05-15 | 1988-11-01 | H. Krantz Gmbh & Co. | Method for the thermal cleaning of exhaust gases of a heat treatment apparatus |
US4888884A (en) * | 1987-05-11 | 1989-12-26 | Bison-Werke Baehre | Method and plant for cleaning dryer exhaust gases during the drying of wood chips, wood fiber of the like |
US4926567A (en) * | 1985-07-04 | 1990-05-22 | Fuji Photo Film Co., Ltd. | Process and apparatus for drying coated web |
US4974335A (en) * | 1988-05-24 | 1990-12-04 | Siemens Aktiengesellschaft | Method and apparatus for drying sewage sludge |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2254848B2 (de) * | 1972-11-09 | 1976-08-05 | Böhler-Zenkner GmbH & Co KG Strömungstechnik, 4005 Meerbusch | Anordnung zur thermischen nachverbrennung |
GB1429972A (en) * | 1973-08-24 | 1976-03-31 | Duur Kg Otto | Process of and apparatus for heating circulating air in drying quipment |
JPS5122281A (en) * | 1974-08-20 | 1976-02-21 | Chugai Ro Kogyo Kaisha Ltd | Kuromubunoganjusuru odeino shokyakushorihoho |
JPS5846127B2 (ja) * | 1977-10-27 | 1983-10-14 | 旭化成株式会社 | オレフインの重合に用いる高活性触媒 |
GB2015419B (en) * | 1977-12-19 | 1982-06-23 | Thames Water Authority | Extruding and pelletising sewage sludge |
JPS54131344A (en) * | 1978-04-03 | 1979-10-12 | Chugai Ro Kogyo Kaisha Ltd | Sludge dryer and sludge drying treatment device |
US4245570A (en) * | 1979-04-26 | 1981-01-20 | Williams Robert M | Sewage sludge disposal apparatus and method of disposal |
CH649775A5 (de) * | 1979-09-25 | 1985-06-14 | Sandoz Ag | Wasserloesliche, anionische chromkomplexe, deren herstellung und verwendung. |
US4276835A (en) * | 1979-10-04 | 1981-07-07 | Von Roll Ag | method for processing sewage sludge |
DE3015290A1 (de) * | 1980-04-21 | 1981-10-29 | Werner & Pfleiderer, 7000 Stuttgart | Verfahren und anlage zum veraschen von klaerschlamm |
JPS6078215A (ja) * | 1983-10-03 | 1985-05-02 | Nissan Motor Co Ltd | オ−ブンの排ガスからの排熱回収方法 |
AT399044B (de) * | 1988-05-10 | 1995-03-27 | Kaindl Holzindustrie | Verfahren und vorrichtung zur emissionsarmen trocknung von holzspänen |
DE58909094D1 (de) * | 1989-03-02 | 1995-04-13 | Axbridge Holdings Ltd | Verfahren und Vorrichtung zur Trocknung von Klärschlamm. |
US4926764A (en) * | 1989-08-17 | 1990-05-22 | Den Broek Jos Van | Sewage sludge treatment system |
-
1990
- 1990-05-18 CH CH1707/90A patent/CH676500A5/de not_active IP Right Cessation
-
1991
- 1991-05-08 US US07/697,328 patent/US5271162A/en not_active Expired - Lifetime
- 1991-05-10 AT AT91107579T patent/ATE95299T1/de not_active IP Right Cessation
- 1991-05-10 ES ES91107579T patent/ES2045982T3/es not_active Expired - Lifetime
- 1991-05-10 EP EP91107579A patent/EP0457203B1/fr not_active Expired - Lifetime
- 1991-05-10 DE DE91107579T patent/DE59100420D1/de not_active Expired - Lifetime
- 1991-05-10 DK DK91107579.4T patent/DK0457203T3/da active
- 1991-05-14 AU AU77015/91A patent/AU649250B2/en not_active Expired
- 1991-05-17 CA CA002042843A patent/CA2042843C/fr not_active Expired - Lifetime
- 1991-05-18 JP JP3113582A patent/JP2584146B2/ja not_active Expired - Lifetime
-
1994
- 1994-02-08 SG SG23594A patent/SG23594G/en unknown
- 1994-03-03 HK HK183/94A patent/HK18394A/xx not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3437321A (en) * | 1966-05-27 | 1969-04-08 | B & K Machinery Int Ltd | Regenerative paint drying system for continuous strip |
US4218832A (en) * | 1979-04-27 | 1980-08-26 | Champion International Corporation | Apparatus for processing wood products using heat from a boiler for indirectly heating drying gas |
US4628619A (en) * | 1984-03-21 | 1986-12-16 | Voest-Alpine Aktiengesellschaft | Drying plant for brown coals of high water content |
US4926567A (en) * | 1985-07-04 | 1990-05-22 | Fuji Photo Film Co., Ltd. | Process and apparatus for drying coated web |
US4780965A (en) * | 1986-05-15 | 1988-11-01 | H. Krantz Gmbh & Co. | Method for the thermal cleaning of exhaust gases of a heat treatment apparatus |
US4715965A (en) * | 1986-05-19 | 1987-12-29 | Sigerson Adam L | Method for separating and recovering volatilizable contaminants from soil |
US4888884A (en) * | 1987-05-11 | 1989-12-26 | Bison-Werke Baehre | Method and plant for cleaning dryer exhaust gases during the drying of wood chips, wood fiber of the like |
US4759777A (en) * | 1987-11-10 | 1988-07-26 | Bact Engineering, Inc. | Decontamination of wood chip dryer gas |
US4974335A (en) * | 1988-05-24 | 1990-12-04 | Siemens Aktiengesellschaft | Method and apparatus for drying sewage sludge |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5535528A (en) * | 1994-02-01 | 1996-07-16 | By-Product Solutions, Inc. | Agglomerating waste sludge and yard waste |
US5697167A (en) * | 1994-11-24 | 1997-12-16 | W. Kunz Drytec Ag | Method for drying a substance, in particular wood shavings |
DE19508140A1 (de) * | 1995-03-08 | 1996-09-12 | Tapken Hermannus | Trocknungsverfahren und Trocknungsvorrichtung zum Trocknen eines Produktes, insbesondere eines landwirtschaftlichen Produktes |
US5603751A (en) * | 1995-06-02 | 1997-02-18 | Mac Equipment, Inc. | Method and apparatus for removing particulate material from a wood drying system |
US5653042A (en) * | 1995-07-21 | 1997-08-05 | Besnard; Rene | Apparatus for drying crop materials |
US5966837A (en) * | 1996-05-06 | 1999-10-19 | Abb Flakt Ab | Wood drying plant and a method of purifying a drying gas from a wood drying device |
US5950322A (en) * | 1996-12-23 | 1999-09-14 | Firma Starcosa-Tag, Division Of Braunschweigische Maschinenbauanstalt Ag | Drier with exhaust gas purification |
US6484416B1 (en) * | 1999-06-25 | 2002-11-26 | Khd Humboldt Wedag Ag | Apparatus for producing cement clinker |
US6393727B1 (en) * | 1999-10-01 | 2002-05-28 | Louisiana-Pacific Corporation | Method for reducing VOC emissions during the manufacture of wood products |
US6931757B2 (en) | 2000-11-14 | 2005-08-23 | Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. | Method for conditioning fibrous substances |
US20040060198A1 (en) * | 2000-11-14 | 2004-04-01 | Dieter Greubel | Method for conditioning fibrous substances |
US20020064085A1 (en) * | 2000-11-28 | 2002-05-30 | Kenzo Takahashi | Garbage processing machine |
WO2004029530A1 (fr) | 2002-06-21 | 2004-04-08 | George Svonja | Procede et appareil de sechage |
EP1552231B1 (fr) * | 2002-06-21 | 2014-08-27 | George Svonja | Procédé et appareil de séchage |
US20050022704A1 (en) * | 2003-07-31 | 2005-02-03 | Egbufoama Caius E. | Incinerator furnace condensers and methods of using |
US7263933B2 (en) * | 2003-07-31 | 2007-09-04 | Ebbufoama Caius E | Incinerator furnace condensers and methods of using |
US8632830B2 (en) | 2003-09-15 | 2014-01-21 | Trouw International B.V. | Fish fodder for freshwater fish and use of such fodder |
US20090239386A1 (en) * | 2003-09-19 | 2009-09-24 | Kenichi Suzaki | Producing method of semiconductor device and substrate processing apparatus |
US7955991B2 (en) * | 2003-09-19 | 2011-06-07 | Hitachi Kokussai Electric Inc. | Producing method of a semiconductor device using CVD processing |
US20070259532A1 (en) * | 2003-09-19 | 2007-11-08 | Hitachi Kokusai Electric Inc. | Producing Method of Semiconductor Device and Substrate Processing Apparatus |
US8636882B2 (en) * | 2003-09-19 | 2014-01-28 | Hitachi Kokusai Electric Inc. | Producing method of semiconductor device and substrate processing apparatus |
US8231731B2 (en) | 2003-09-19 | 2012-07-31 | Hitachi Kokusai Electric, Inc. | Substrate processing apparatus |
EP1843114A1 (fr) * | 2006-04-06 | 2007-10-10 | Swedish Exergy Consulting AB | Installation de séchage |
WO2007115771A1 (fr) * | 2006-04-06 | 2007-10-18 | Swedish Exergy Consulting Ab | Installation à séchoir |
US10551121B2 (en) * | 2008-01-10 | 2020-02-04 | Douglas Technical Limited | Method for continuously drying bulk goods, in particular wood fibers and/or wood chips |
US10690409B2 (en) | 2008-01-10 | 2020-06-23 | Douglas Technical Limited | Method for continuously drying bulk goods, in particular wood fibers and/or wood chips |
US20110030235A1 (en) * | 2008-01-10 | 2011-02-10 | Zdenek Brancuzsky | Method for continuously drying bulk goods, in particular wood fibers and/or wood chips |
US20090293303A1 (en) * | 2008-06-03 | 2009-12-03 | Synagro Technologies, Inc. | Biosolid Drying and Utilization in Cement Processes |
US8667706B2 (en) * | 2008-08-25 | 2014-03-11 | David N. Smith | Rotary biomass dryer |
US20100146814A1 (en) * | 2008-12-11 | 2010-06-17 | Baker Stephen T | Vibratory Flash Dryer |
US20100223806A1 (en) * | 2009-02-18 | 2010-09-09 | Christian Labarde | Burner, installation and method for drying divided products using such a burner |
RU2634463C2 (ru) * | 2016-04-11 | 2017-10-30 | Федеральное государственное бюджетное научное учреждение Всероссийский научно-исследовательский институт механизации животноводства, ФГБНУ ВНИИМЖ | Способ производства высоковитаминной травяной муки |
CN110382959A (zh) * | 2017-03-03 | 2019-10-25 | 道格拉斯科技有限公司 | 用于连续干燥散装物品、特别是木屑和/或木纤维的包括固体燃烧热气发生器的设备和方法 |
US11079106B2 (en) | 2017-03-03 | 2021-08-03 | Douglas Technical Limited | Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising multi-fuel burner with a muffle cooling system |
US11248845B2 (en) | 2017-03-03 | 2022-02-15 | Douglas Technical Limited | Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising a heat exchanger |
US11499778B2 (en) | 2017-03-03 | 2022-11-15 | Douglas Technical Limited | Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising a solid fired hot gas generator |
US11543124B2 (en) | 2017-03-03 | 2023-01-03 | Kronoplus Limited | Apparatus and method for continuously drying bulk goods, in particular wood chips and/or wood fibers comprising a hot gas cyclone |
US11384981B2 (en) | 2017-06-06 | 2022-07-12 | Kronoplus Limited | Apparatus and method for continuously drying bulk goods |
Also Published As
Publication number | Publication date |
---|---|
AU649250B2 (en) | 1994-05-19 |
JPH04227463A (ja) | 1992-08-17 |
CH676500A5 (fr) | 1991-01-31 |
SG23594G (en) | 1994-06-10 |
DK0457203T3 (da) | 1994-02-21 |
ES2045982T3 (es) | 1994-01-16 |
CA2042843C (fr) | 1994-11-01 |
EP0457203B1 (fr) | 1993-09-29 |
DE59100420D1 (de) | 1993-11-04 |
ATE95299T1 (de) | 1993-10-15 |
EP0457203A1 (fr) | 1991-11-21 |
AU7701591A (en) | 1991-11-21 |
HK18394A (en) | 1994-03-11 |
JP2584146B2 (ja) | 1997-02-19 |
CA2042843A1 (fr) | 1991-11-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5271162A (en) | Process for the emission-free drying of a substance in a drying drum | |
CA1146813A (fr) | Installation et methode de traitement des boues d'egout | |
US4232614A (en) | Process of incineration with predrying of moist feed using hot inert particulates | |
US4330411A (en) | Process for treating clarified sludge | |
US4213407A (en) | Flash drying sludge derived fuel process | |
US6883444B2 (en) | Processes and systems for using biomineral by-products as a fuel and for NOx removal at coal burning power plants | |
KR101302008B1 (ko) | 오니 건조 방법 | |
US20050274293A1 (en) | Method and apparatus for drying wet bio-solids using excess heat recovered from cement manufacturing process equipment | |
US6405664B1 (en) | Processes and systems for using biomineral by-products as a fuel and for NOx removal at coal burning power plants | |
US4153411A (en) | Rotary sludge drying system with sand recycle | |
US5297957A (en) | Organic waste incinerator | |
KR100417220B1 (ko) | 하수슬러지처리기 | |
KR100268592B1 (ko) | 하수 슬러지 처리방법 | |
EA026801B1 (ru) | Способ и установка для получения твердого топлива из осадков сточных вод | |
KR200199645Y1 (ko) | 쓰레기 소각로 폐열을 이용한 음식쓰레기의 건조화 및 소각처분장치 | |
JPS6152883B2 (fr) | ||
US11965651B2 (en) | Process for producing biomass by treatment of organic waste with two-step drying | |
WO2019053855A1 (fr) | Dispositif et procédé de traitement de déchets organiques | |
JP2011068824A (ja) | 有機性含水廃棄物の炭化設備 | |
JP3867258B2 (ja) | 乾燥設備における製品発火防止機構並びに製品発火防止方法 | |
JPH11106773A (ja) | 泥状物からの固形燃料の製造方法 | |
KR200168722Y1 (ko) | 하·폐수 슬러지 처리용 교반패들 기류건조장치 | |
JPS5880417A (ja) | 有機性汚泥の乾燥焼却方法 | |
JPS56155311A (en) | Drying, incineration and ash granulation of organic sludge | |
Roediger | Medium-temperature belt dryers for biosolids |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SC TECHNOLOGY AG, SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:KUNZ, WERNER;VONPLON, ARMIN;REEL/FRAME:006419/0368 Effective date: 19930121 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAT HLDR NO LONGER CLAIMS SMALL ENT STAT AS SMALL BUSINESS (ORIGINAL EVENT CODE: LSM2); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FEPP | Fee payment procedure |
Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FEPP | Fee payment procedure |
Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
AS | Assignment |
Owner name: SC TECHNOLOGY GMBH, SWITZERLAND Free format text: CHANGE OF NAME;ASSIGNOR:SC TECHNOLOGY AG;REEL/FRAME:014934/0077 Effective date: 20030313 |
|
FPAY | Fee payment |
Year of fee payment: 12 |